ZF 4-9 HP: features, advantages & disadvantages

ZF 4-9 HP: features, advantages & disadvantages

ZF 4-9 HP are automatic transmissions, produced over the years by the renowned German company ZF Friedrichshafen AG. Some of them are out of production, others are still being produced. They debuted in 1983. Today the cars of Ford, Peugeot, Audi, Fiat, Renault, BMW, Volkswagen, Porsche, Jaguar, Land Rover and other popular makes are equipped with these transmissions.

All ZF 4-9 HP transmissions are classic automatic gearboxes with a torque converter and planetary gear sets. Depending on a software installed, they have several operating modes and usually adapt to a certain driving style. Often they offer a manual control mode that allows the driver to shift gears according to a road situation. The manual gear shifting depends on a vehicle make and model and can be performed with the help of the gear lever, rotary selector, buttons or paddle shifters.

Popular ZF 4-9 HP transmissions

Number of gearsGearbox codeProduction startMax engine torque, N·mMax engine capacity, LCar layoutModel applications
44HP1419831802.0FWDCitroën BX; Peugeot 405; Citroën Xantia; Peugeot 205; Citroën ZX; Volvo 440; Daewoo Leganza; Peugeot 306; Peugeot 309; Rover 800; Daewoo Nubira; Peugeot 305
44HP2019953303.5FWDCitroën Xantia; Peugeot 406; Renault Laguna; Lancia Phedra; Renault Espace; Citroën C5; Peugeot 605; Citroën XM; Peugeot 407; Fiat Ducato; Renault Safrane; Lancia Kappa; Mercedes-Benz Vito; Alfa Romeo 166
44HP2420044505.0RWD, AWDBMW E31; Jaguar XJS; Audi V8; Land Rover Discovery; Jaguar XJ6; BMW E32; Range Rover; Audi А8
55HP1919953503.7FWD, RWD, AWDAudi A4; Audi Allroad; BMW E38; Audi A8; Porsche 911; BMW E46; BMW Z4 E85; Audi A6; Porsche Boxster; BMW E39; Volkswagen Passat
55HP2419954406.0FWD, RWD, AWDBMW E39; Jaguar XJ; BMW X5 E53; Audi A8; Jaguar XK; BMW E38; Audi A6; BMW E31; Volkswagen Phaeton
66HP1920004003.5FWD, RWD, AWDAudi A4; BMW E60; BMW E90; Audi A8; BMW E87; Audi A6; BMW E63
66HP2620016006.0FWD, RWD, AWDBMW E90; Ford Explorer; BMW X3 E83; Ford Territory; BMW E63; Audi A6; BMW E60; BMW X5 E53; Ford Expedition; Audi A8; Ford Mustang; Jaguar S-Type; BMW E65; Jaguar XK; Audi A4; Volkswagen Phaeton
66HP3220028507.6FWD, RWD, AWDBentley Azure; BMW E65; Rolls-Royce Drophead Coupe; Bentley Arnage; Rolls-Royce Phantom; Volkswagen Phaeton
88HP4520105003.5 RWD, AWDBMW F10; Chrysler 300; BMW F20; Volkswagen Amarok; BMW F30; Alfa Romeo Giulia; BMW X3 F25; Alfa Romeo Stelvio; BMW X5 F15; Dodge Charger; Jaguar XE; BMW F22
88HP5520105504.2FWD, AWDAudi Q5; Audi A8; Audi Q7; Audi A7
88HP90201010008.0FWD, RWD, AWDRolls-Royce Wraith; Bentley Mulsanne; Lamborghini Urus;Audi SQ7; Bentley Continental; Rolls-Royce Phantom; Aston Martin DBS; Audi RS6; Dodge Hellcat
99HP2820143802.4FWDFiat 500X; Chrysler 200; Jeep Renegade
9HP4820134804.0FWD, AWDAcura TLX; Jeep Renegade; Acura MDX; Chrysler 200; Honda Pilot; Chrysler Pacifica; Range Rover Evoque; Fiat 500X; Fiat Doblo; Honda CR-V; Jeep Cherokee; Jaguar E-Pace; Range Rover Discovery Sport

Common malfunctions of ZF 4-9 HP transmissions

MalfunctionsTransmissions
Torque converter clutch wears out, thus leading to vibrations and leaks.4HP20; 8HP55; 4HP24; 6HP19
The solenoids get soiled and destroyed.4HP20; 5HP19; 8HP45; 6HP19; 6HP26
The gear position sensor stops working.4HP20
The oil pump is clogged with wear products of the torque converter clutch.5HP19; 4HP24; 8HP55
Bushings get damaged. This leads to leaks, vibrations, destruction of transmission components, for instance, the oil pump.4HP24; 5HP19; 4HP20; 8HP45; 4HP14; 6HP32
The torque converter breaks down due to increased loads.5HP24; 5HP19
Wiring of the solenoids fails.5HP24
The rotational speed sensor has a short lifespan.5HP24; 4HP24
The hub bearing breaks down.5HP24
The mechatronic unit burns out due to overheating.6HP26; 6HP19; 8HP90; 8HP55; 6HP32
The valve body separator plate gets damaged because of dirt.6HP19
Mechanical elements of the transmission wear out prematurely due to leaks and low oil pressure level.6HP32; 6HP19; 8HP90; 8HP45
The plastic pan deforms.6HP26
The aluminium planet gears set breaks down soon.8HP45
Oil leaks from the control unit sleeve.8HP55; 8HP45
The transmission shifts to neutral unpromptedly.9HP48; 9HP28

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